Missing input values

[miracle2k]

https://github.com/graphql-python/graphql-core/blob/master/graphql/core/execution/values.py#L131

This line will through a key error if an input values is not provided. I believe to match the reference implementation, it would have to be:

 values.get(field_name)

[jhgg]

Hey. Can you provide code to repro the case where this happens, so we can put it in as a unittest?

Thanks!

[jhgg]

While working on the Variable unit test cases, I found a test case that reliably replicated this issue.

[syrusakbary]

👍